SOLUTION: Find the value of k on x^2+3x+k-1=0 if the quadratic equation has: a) equal roots b) one root -3 thanks :)

SOLUTION: Find the value of k on x^2+3x+k-1=0 if the quadratic equation has: a) equal roots b) one root -3 thanks :)

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Question 357829: Find the value of k on x^2+3x+k-1=0 if the quadratic equation has:
a) equal roots
b) one root -3
thanks :)
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
a)Use the discriminant.

For equal roots,

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b) Use the quadratic formula,

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